Java的Properties

import java.io.IOException; 
import java.io.InputStream; 
import java.util.Properties; 
public class LoadProp{
	public static void main(String[] args){
		LoadProp loadProp = new LoadProp(); 
		InputStream in = loadProp.getClass().getResourceAsStream("/a.properties"); 
		Properties prop = new Properties(); 
		try { 
			prop.load(in); 
		} catch (IOException e) { 
			e.printStackTrace(); 
		} 
		System.out.println(prop.getProperty("name", "none")); 
		System.out.println(prop.getProperty("age", "none")); 
		
	}
}